You can sign up at Travelocity - pick the various flight routes you're interested and prices you're willing to pay. . . they'll email you as soon as airfare hits at or below that rate. You'll find out quicker that way. It takes a lot of constantly watching fares to know when they hit their low points. That'll be your best bet, rather than waiting for someone to happen to catch that one flight you need and think to come back and post it. Travelocity will send you an email alert pretty much immediately.